Just "use strict;" and move on. You can turn on strict with use 5.12.0; or any explicit later version, but that's not a great way of just turning on strict because you may get unexpected side effects or limit functionality when using newer version of Perl.
There was a suggestion that it would be the default for Perl 7, but that is now off the table due to potential for breakage of legacy code.
Optimising for fewest key strokes only makes sense transmitting to Pluto or beyond
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